Multi-calculation results: an energy table and reaction/voltage profile across a project #175

Part of the battery-research feature set. Also serves the reaction energy profile item on the post-analysis list.

What exists

• A reusable XY plot widget, ewxPlotCtrl, used by many panels.
• Every property panel is single-calc (PropertyPanel::getCalculation()).
• The Organizer's project table shows metadata only (ProjectContextPanel.C:202-262).
• Nothing gathers energies from several calcs.

Wanted

• Energy columns in the Organizer project table: TE, ZPE, H, G, and solvation energy where present.
• A "results" view over a selection or a series: a table of ΔE/ΔH/ΔG relative to a chosen reference, with unit choice (Ha, kcal/mol, kJ/mol, eV).
• A publication-style reaction profile plot, with SVG/PNG and CSV export.
• A wx-free engine (gather properties, align by formula, convert units) with a headless test; the panel only draws.

Estimate

3–5 days.